Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1978-07-10
1980-03-25
Welsh, Maurice J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
252182, 2521883R, 528 49, 528 73, 528 75, C08G 1867
Patent
active
041951468
ABSTRACT:
Disclosed are unsaturated isocyanurates of monourethanes of an aromatic polyisocyanate and a vinylidene carbonyl oxy alkanol characterized by one of the following formulae: ##STR1## wherein R.sub.1 is hydrogen or an alkyl group containing from one to four carbon atoms, R.sub.2 is hydrogen, alkyl containing from 1 to 12 carbon atoms, or a chlorinated, brominated, or fluorinated alkyl group containing from 1 to 12 carbon atoms, R.sub.3 is hydrogen, alkyl containing from 1 to 12 carbon atoms, or a chlorinated, brominated, or fluorinated alkyl group containing from 1 to 12 carbon atoms, R.sub.4 is hydrogen, methyl or ethyl, and n is from one to four, with the proviso that R.sub.2 and R.sub.3 on adjacent carbon atoms are not both alkyl or chlorinated, brominated, or fluorinated alkyl. The unsaturated isocyanurates may be homopolymerized or copolymerized with ethylenically unsaturated compounds to form isocyanurate polymers having excellent physical properties at high temperatures.
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Markiewitz Kenneth H.
Restaino Alfred J.
ICI Americas Inc.
Welsh Maurice J.
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